221488405

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{7517}}^1$

素因数の和:7676

約数の個数: 16

約数和(自身を含む): 272813184

約数和(自身を除く): 51324779

約数列:

[1, 5, 71, 83, 355, 415, 5893, 7517, 29465, 37585, 533707, 623911, 2668535, 3119555, 44297681, 221488405]

約数ペア:

[(1, 221488405), (5, 44297681), (71, 3119555), (83, 2668535), (355, 623911), (415, 533707), (5893, 37585), (7517, 29465)]